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Air pollution has been a growing concern for many in Pakistan. With rapid population growth and urbanisation, Pakistan is facing the worst air quality it has experienced since in its existence. AirVisual, an air quality monitor, ranks the major cities of Pakistan like Karachi, Lahore, Faisalabad and Peshawar among the most polluted cities in the world.
Another major problem that has emerged in the past few years is smog, which is a result of extreme air pollution. Smog, quite literally, is formed when smoke merges with fog; a hazy, grey air which is produced when heat from the sunlight reacts with fine particles ...